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8 Cards in this Set
- Front
- Back
Under standard conditions: Fluorine? 1) Physical state? 2) Colour? 3) This is? |
1) Gaseous. 2) Pale yellow. 3) Highly reactive. |
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Under standard conditions: Chlorine?
1) Physical state? 2) Colour? 3) This is? |
1) Gaseous. 2) Green. 3) Poisonous in high concentrations. |
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Under standard conditions: Bromine?
1) Physical state? 2) Colour? 3) This is? |
1) Liquid. 2) Red. 3) It gives off brown poisonous fumes. |
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Under standard conditions: Iodine? 1) Physical state? 2) Colour? 3) This is? |
1) Solid/Gas. 2) Shiny grey solid, purple gas. 3) The solid will sublime to a gas. |
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The melting points: |
Increase down the group due to increases number of electrons (electron shells) which means there are greater VDW forces of attraction between molecules which require more energy to be broken. |
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The atomic radius: |
Increases down the group due to more electron shells and repulsion between them. |
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The electronegativity: |
Decreases down the group because as the size increases the distance between the outer electrons and the protons in the nucleus increases, thus weakening the electrostatic forces of attraction. |
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Colours of the Halide ions: 1) Chloride? 2) Bromide? 3) Iodide? |
1) Colourless solution. 2) Yellow Solution. 3) Brown Solution. |